motor beating

Is this the same machine?

Or similar machine with similar vibrations?

Your Emerson-CSI software has very useful cursors for marking peaks on the spectrum and identifying harmonics and sidebands caused by modulation. The waveform has cursor that can be used to mark the period of repeating peaks and also calculates the frequency (Hertz). I suggest you use these tools and present more useful data to yourself and everyone else! A lot of folks post data without plots annotated with frequencies, and many times leave the Cursor at a useless place in the plot. This is very irritating!

If you have a fluid drive, then you need to measure motor speed and input speed to gearbox (FD output). You should also measure gearbox output speed and conveyor speed, if different. Please come back with more information.

Walt

I agree with Walt on the poor presentation of the data.  

On some of the shots I see what appears to be a Windows based desktop.  In addition to Walt says about cursors and assoted tools within the software, learn to use the PrntScrn button and the Alt-PrntScrn buttons to get screen shots.  You can then take the screenshot and paste it into a Word document, convert to PDF and post here.

 

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